Core Faculty
Paul Lee, MD
SJMC Program Director
Internship: The John Hopkins Hospital Baltimore, Maryland
Fellowship: Senior Registrar in Pediatric Urology, Hospital for Sick Children, London
Residency: University of Massachusetts Medical Center, Worcester, Ma.
Medical School: New Jersey Medical School
Medical Experience: Paul Lee, MD is a Urology Specialist in Stockton, CA. and is affiliated with St. Joseph's Medical Center Stockton and TUMG. He has extensive experience in Urology and Pediatrics, and has been in practice for more than 33 years.
Michael Zhang, MD
SJMC Associate Program Director
Fellowship: University of Southern California, CA Endourology/Robotics Fellow
Residency: New York Medical College, NY
Medical School: Thomas Jefferson University, Philadelphia, PA
Medical Experience: Michael Zhang, MD is a Urology Specialist in Stockton, CA. Dr. Zhang is affiliated with St. Joseph's Medical Center Stockton and TUMG.
Andrew Wang, MD
Sutter Faculty
Residency: Eastern Virginia Medical School Urology
Medical Experience: Dr. Wang is a Urology Specialist in Stockton, CA., and is affiliated with St. Joseph's Medical Center Stockton and Sutter. He is a new member to our faculty.
Fun Fact: Dr. Wang is married and enjoys basketball, tennis and hiking.
Kurt Roemer, MD
Sutter Faculty
Residency: Naval Regional Medical Center, Oakland, California
Medical School: University of Mississippi, Oxford, Mississippi
Medical Experience: Dr. Roemer, MD is a Urology Specialist in Stockton, CA. and is affiliated with St. Joseph's Medical Center Stockton and Sutter. He has extensive experience in Urology and has been in practice for more than 44 years.
Peter Garbeff, MD
Sutter Faculty
Residency: Mayo, Rochester, Minnesota
Medical Experience: Dr. Garbeff is a Urology Specialist in Stockton, CA., and affiliated with St. Joseph's Medical Center Stockton and Sutter. He has extensive experience in Urology and has been in practice for more than 46 years.

Nathan Kludt, MD
Plastic Surgery Center of Stockton
Residency: UC Davis Medical Center
Medical Experience: Dr. Kludt is our board-certified Plastic Surgeon. He completed his training at the University of California, Davis, one of the leading Plastic Surgery Programs in the nation. He has been trained in the most current, innovative techniques and has dedicated himself to the pursuit of excellence in aesthetic and reconstructive surgery. His commitment is to provide the highest level of medical expertise and personalized care, focusing on both the physical and emotional elements of the process.
Purushottama B. Sagireddy, MD, FASN
San Joaquin Kidney Clinic
Residency: University of Illinois, Chicago
Fellowship: University of Texas, San Antonio
Medical Experience: Dr. Sagireddy was born and raised in India, where he received his undergraduate medical education before moving to the United States. With his family background in farming and drawn by the weather and the multicultural and ethnic mixture of the location, he decided to start his nephrology practice in Stockton, CA, in 2001. When not practicing medicine, he enjoys gardening, watching NFL & NBA games. He likes to travel across the globe, learning different cultures and exploring different ethnic cuisines.
VA of Northern California - Faculty Members
- Shelley Godley, MD
Site Director
Residency: UC Davis Medical Center
- Natalie Hartman, MD
Residency: Loyola University Medical Center
- Thenappan Chandrasekar, MD
Residency: UC Davis Medical Center
Fellowship: Thomas Jefferson University Hospital (Robotics), University of Toronto (Urologic Oncology)
- Dana Nanigian, MD
Residency: UC Davis Medical Center
- Arden Plumb, MD
Residency: Loyola University Medical Center
Kaiser - Faculty Members
Raymond Mark Bernal, MD
Site Director - Manteca & Modesto
Residency: Temple University Hospital
Fellowship: Duke University Medical Center (Reconstructive Urology and GU Cancer Survivorship), New York Presbyterian Hospital (Male Infertility & Male Sexual Dysfunction)
Aron Bruhn, MD
Site Director – Roseville
Specialty: Urology
Residency: New York University Medical Center

Jennifer Yang, MD
Site Director – Roseville
Specialty: Pediatric Urology
Residency: New York Presbyterian Hospital
Fellowship: UC San Francisco School of Medicine (Pediatric Urology)
- Samuel Chan, MD
Residency: New York University Medical Center
- Kit Chang, MD
Residency: New York University Medical Center
- Ian Cooke, MD
Residency: Emory University Hospital
Fellowship: Roswell Park Cancer Institute (MIS & Urologic Oncology)
- Andrew Giem, MD
Residency: University of Tennessee School of Medicine
- Richard Ho, MD
Residency: Yale University
- Vesna Ivancic, MD
Residency: UC Los Angeles Medical Center
Fellowship: Cincinnati Children's Hospital Medical Center (Pediatric Urology)
- Chen Lang, MD
Residency: Loyola University Medical Center
- Dennis Lee, MD
Residency: University of Southern California Keck School of Medicine
Fellowship: City of Hope National Medical Center (Urologic Oncology & Robotic Surgery)
- Christopher Li, MD
Residency: Albany Medical Center
- Thaiphi Luu, MD
Residency: Methodist Hospital
- Frank Myers, MD
Residency: SUNY Downstate Medical Center
Fellowship: City of Hope National Medical Center (Urologic Oncology & Robotic Surgery)
- Son Nguyen, MD
Residency: UC Davis Medical Center
- Roland Palvolgyi, MD
Residency: UC Davis Medical Center
- Michael Shulman, MD
Residency: University of Texas Southwestern Medical School
- Carmen Stapp, MD
Residency: UC Davis Medical Center
- Kimberly Takahashi, MD
Residency: Baylor College of Medicine
- Scott Troxel, MD
Residency: UC Davis Medical Center
Fellowship: UC Davis Medical Center
- Weichen Xu, MD
Residency: UC Davis Medical Center
- Lindsay Yuh, MD
Residency: UC Davis Medical Center
THE PROGRAM
- Message from the Urology Team
- Curriculum Overview
- Didactics
- Salary and Benefits
- Frequently Asked Questions (FAQs)
PROSPECTIVE APPLICANTS
THE PEOPLE
THE LOCATION
SOCIAL MEDIA